.second{
    width: 1101px;
    background: white;
    margin: 0 auto;
    margin-top: 106px;
    padding: 41px 55px;
    box-sizing: border-box;
}
p{
    font-size: 14px;
    line-height: 22px;
}
.jieshao{
    width: 990px;
    font-size: 12px;
    height: 69px;
    padding: 13px 22px;
    line-height: 21px;
    box-sizing: border-box;
    background: #f0f1f1;
    margin: 23px 0;
}
h4{
    margin: 15px 0;
}
.second ul{
    width: 990px;
    display: flex;
    height: 55px;
    margin-top: 15px;
    box-sizing: border-box;
    border-top: 1px solid black;
    justify-content: space-between;
}

.second ul li a{
    display: inline-block;
    height: 55px;
    line-height: 55px;
    font-size: 14px;
    color: black;
}